86057929 has 2 divisors, whose sum is σ = 86057930. Its totient is φ = 86057928.

The previous prime is 86057911. The next prime is 86057941. The reversal of 86057929 is 92975068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55532304 + 30525625 = 7452^2 + 5525^2 .

It is a cyclic number.

It is not a de Polignac number, because 86057929 - 2⁷ = 86057801 is a prime.

It is not a weakly prime, because it can be changed into another prime (86057989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43028964 + 43028965.

It is an arithmetic number, because the mean of its divisors is an integer number (43028965).

Almost surely, 2^86057929 is an apocalyptic number.

It is an amenable number.

86057929 is a deficient number, since it is larger than the sum of its proper divisors (1).

86057929 is an equidigital number, since it uses as much as digits as its factorization.

86057929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 86057929 is about 9276.7412920702. The cubic root of 86057929 is about 441.4995820979.

The spelling of 86057929 in words is "eighty-six million, fifty-seven thousand, nine hundred twenty-nine".